Package org.uma.jmetal.util.observer.impl

Class RunTimeChartObserver<S extends Solution<?>>

java.lang.Object

org.uma.jmetal.util.observer.impl.RunTimeChartObserver<S>

All Implemented Interfaces:

Observer<Map<String,Object>>

public class RunTimeChartObserver<S extends Solution<?>>
extends Object
implements Observer<Map<String,Object>>

This observer prints a chart in real time showing the current Pareto front approximation produced by an algorithm. It requires a two pairs in the map used in the update() method: * - (EVALUATIONS, int) * - (POPULATION, List)

Author:

Antonio J. Nebro <antonio@lcc.uma.es>

Constructor Summary

Constructors

Constructor	Description
RunTimeChartObserver(String legend, int delay)	Constructor
RunTimeChartObserver(String legend, int delay, int plotUpdateFrequency, String referenceFrontName)
RunTimeChartObserver(String legend, int delay, int plotUpdateFrequency, String referenceFrontName, String xLabel, String yLabel)
RunTimeChartObserver(String legend, int delay, String referenceFrontName)

Method Summary

Modifier and Type	Method	Description
GenericChartContainer<S>	getChart()
String	getName()
void	setReferencePointList(List<List<Double>> referencePointList)	This method is used to set a list of reference points; it is used by reference-point based algorithms.
void	setReferencePoints(List<List<Double>> referencePoins)
String	toString()
void	update(Observable<Map<String,Object>> observable, Map<String,Object> data)	This method displays a front (population)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

RunTimeChartObserver

public RunTimeChartObserver(String legend,
 int delay)

Constructor

Parameters:

legend - Legend to be included in the chart

delay - Display delay

RunTimeChartObserver

public RunTimeChartObserver(String legend,
 int delay,
 String referenceFrontName)

Parameters:

legend - Legend to be included in the chart

delay - Display delay

referenceFrontName - File name containing a reference front

RunTimeChartObserver

public RunTimeChartObserver(String legend,
 int delay,
 int plotUpdateFrequency,
 String referenceFrontName)

RunTimeChartObserver

public RunTimeChartObserver(String legend,
 int delay,
 int plotUpdateFrequency,
 String referenceFrontName,
 String xLabel,
 String yLabel)

Method Details

setReferencePoints

public void setReferencePoints(List<List<Double>> referencePoins)

setReferencePointList

public void setReferencePointList(List<List<Double>> referencePointList)

This method is used to set a list of reference points; it is used by reference-point based algorithms.

Parameters:

referencePointList -

update

public void update(Observable<Map<String,Object>> observable,
 Map<String,Object> data)

This method displays a front (population)

Specified by:

update in interface Observer<S extends Solution<?>>

Parameters:

data - Map of pairs (key, value)

getChart

public GenericChartContainer<S> getChart()

getName

public String getName()

toString

public String toString()

Overrides:

toString in class Object